78 lines
4.4 KiB
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78 lines
4.4 KiB
HTML
<!-- Common Lisp HyperSpec (TM), version 7.0 generated by Kent M. Pitman on Mon, 11-Apr-2005 2:31am EDT -->
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<TITLE>CLHS: Standard Generic Function FUNCTION-KEYWORDS</TITLE>
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<A NAME="function-keywords"><I>Standard Generic Function</I> <B>FUNCTION-KEYWORDS</B></A> <P>
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<P><B>Syntax:</B><P>
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<P>
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<B>function-keywords</B> <I>method</I> => <I>keys, allow-other-keys-p</I><P>
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<P>
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<P><B>Method Signatures:</B><P>
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<P>
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<B>function-keywords</B> <I>(<I>method</I><B> <A REL=DEFINITION HREF="t_std_me.htm#standard-method">standard-method</A></B>)</I><P>
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<P>
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<P><B>Arguments and Values:</B><P>
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<P>
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<I>method</I>---a <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>method</I></A>. <P>
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<I>keys</I>---a <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A>. <P>
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<I>allow-other-keys-p</I>---a <A REL=DEFINITION HREF="26_glo_g.htm#generalized_boolean"><I>generalized boolean</I></A>. <P>
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<P><B>Description:</B><P>
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<P>
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Returns the keyword parameter specifiers for a <I>method</I>. <P>
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Two values are returned: a <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A> of the explicitly named keywords and a <A REL=DEFINITION HREF="26_glo_g.htm#generalized_boolean"><I>generalized boolean</I></A> that states whether <TT>&allow-other-keys</TT> had been specified in the <I>method</I> definition. <P>
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<P><B>Examples:</B><P>
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<P>
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<PRE>
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(defmethod gf1 ((a integer) &optional (b 2)
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&key (c 3) ((:dee d) 4) e ((eff f)))
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(list a b c d e f))
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=> #<STANDARD-METHOD GF1 (INTEGER) 36324653>
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(find-method #'gf1 '() (list (find-class 'integer)))
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=> #<STANDARD-METHOD GF1 (INTEGER) 36324653>
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(function-keywords *)
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=> (:C :DEE :E EFF), <A REL=DEFINITION HREF="26_glo_f.htm#false">false</A>
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(defmethod gf2 ((a integer))
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(list a b c d e f))
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=> #<STANDARD-METHOD GF2 (INTEGER) 42701775>
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(function-keywords (find-method #'gf1 '() (list (find-class 'integer))))
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=> (), <A REL=DEFINITION HREF="26_glo_f.htm#false">false</A>
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(defmethod gf3 ((a integer) &key b c d &allow-other-keys)
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(list a b c d e f))
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(function-keywords *)
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=> (:B :C :D), <A REL=DEFINITION HREF="26_glo_t.htm#true">true</A>
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</PRE>
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</TT> <P>
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<P><B>Affected By:</B><P>
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<P>
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<A REL=DEFINITION HREF="m_defmet.htm#defmethod"><B>defmethod</B></A> <P>
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<P><B>Exceptional Situations:</B> None.
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<P>
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<P><B>See Also:</B><P>
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<P>
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<A REL=DEFINITION HREF="m_defmet.htm#defmethod"><B>defmethod</B></A> <P>
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<P><B>Notes:</B> None.
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